4-Methoxybenzylamine → HCID 20481285, compound

Participants

Reaction Steps

Using 65 g of p-methoxybenzylamine for the starting material of Example 1 gives 4-aminomethyl-7-methoxy-2(3H)-indolone hydrochloride. This material (2 g) was converted to the base and alkylated using 1 mole equivalent of isovaleraldehyde as in Example 2 to give 4-isopentylaminomethyl-7-methoxy-2(3H)-indolone hydrobromide and 4-isopentylaminomethyl-7-hydroxy-2(3H)-indolone hydrobromide after demethylation using boron tribromide in methylene chloride at -20°.

Provenance & Evidence